阿摩線上測驗
10. The invention of the silicon chip was a _______ in the history of the computer. It has greatly changed our lives for the better.
(A) landmark
(B) ministry
(C) sacrifice
(D) telegraph
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統計： A(55), B(6), C(12), D(20), E(0) #3510520
統計： A(55), B(6), C(12), D(20), E(0) #3510520
